I have a Macbook and would like to secure it a little more. I have been searching for an application that would utilize the iSight camera in security. Basically I would like the camera to log all people that try and fail when logging onto the computer. Is there already an application like that?

Undercover is a utility that uses your camera, if your laptops gets stolen, to take a snapshot of the suspect after you have reported it stolen. I have a macbook too, and have heard good things abotu this utility. HTH